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74B550730-101 — VALVE,VENT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

74B550730-101: VALVE,VENT.

The VALVE,VENT is a the manufacturer industrial component. Key specifications include operating_pressure: 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, face_to_face_distance: 3.780 INCHES IN, media_for_which_designed: AIR SINGLE RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-159-7605, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
74B550730-101
NSN: 4820-01-159-7605
FSC: 4820 — Valves, Nonpowered
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
operating_pressure60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
face_to_face_distance3.780 INCHES IN
media_for_which_designedAIR SINGLE RESPONSE
NSN4820-01-159-7605
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 74B550730-101 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OPERATING PRESSURE: 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
FACE TO FACE DISTANCE: 3.780 INCHES IN
•
MEDIA FOR WHICH DESIGNED: AIR SINGLE RESPONSE
TECHNICAL CHARACTERISTICS
OPERATING PRESSURE60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FACE TO FACE DISTANCE3.780 INCHES IN
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 3
74B550730Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
10124666Reference document
Same NSN cross-reference
Reference document — Informative reference only
2790544-101Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74B550730-101?
74B550730-101 is a VALVE,VENT.
What parts can replace 74B550730-101?
There are 3 known substitutes for 74B550730-101: 74B550730, 10124666, 2790544-101. Substitute compatibility should be verified for your specific system.
What is the NSN for 74B550730-101?
74B550730-101 is cataloged in the U.S. Government catalog under NSN 4820-01-159-7605. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.